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Summary for Tropical Storm GASTON (AT2/AL072016)
2016-08-24 10:35:03| National Hurricane Center (Atlantic)
...GASTON A LITTLE STRONGER... ...FORECAST TO BECOME A HURRICANE LATER TODAY... As of 5:00 AM AST Wed Aug 24 the center of GASTON was located near 14.9, -38.6 with movement WNW at 17 mph. The minimum central pressure was 999 mb with maximum sustained winds of about 70 mph.
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Tropical Storm GASTON Public Advisory Number 7
2016-08-24 10:35:03| National Hurricane Center (Atlantic)
Issued at 500 AM AST WED AUG 24 2016 000 WTNT32 KNHC 240834 TCPAT2 BULLETIN TROPICAL STORM GASTON ADVISORY NUMBER 7 NWS NATIONAL HURRICANE CENTER MIAMI FL AL072016 500 AM AST WED AUG 24 2016 ...GASTON A LITTLE STRONGER... ...FORECAST TO BECOME A HURRICANE LATER TODAY... SUMMARY OF 500 AM AST...0900 UTC...INFORMATION ---------------------------------------------- LOCATION...14.9N 38.6W ABOUT 975 MI...1570 KM W OF THE CABO VERDE ISLANDS MAXIMUM SUSTAINED WINDS...70 MPH...110 KM/H PRESENT MOVEMENT...WNW OR 290 DEGREES AT 17 MPH...28 KM/H MINIMUM CENTRAL PRESSURE...999 MB...29.50 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ At 500 AM AST (0900 UTC), the center of Tropical Storm Gaston was located near latitude 14.9 North, longitude 38.6 West. Gaston is moving toward the west-northwest near 17 mph. A turn toward the northwest is expected later today. Maximum sustained winds have increased to near 70 mph (110 km/h) with higher gusts. Additional strengthening is forecast during the next day or so, and Gaston is expected to become a hurricane later today. Tropical-storm-force winds extend outward up to 70 miles (110 km) from the center. The estimated minimum central pressure is 999 mb (29.50 inches). HAZARDS AFFECTING LAND ---------------------- None. NEXT ADVISORY ------------- Next complete advisory at 1100 AM AST. $$ Forecaster Berg
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Tropical Storm GASTON Forecast Advisory Number 7
2016-08-24 10:34:31| National Hurricane Center (Atlantic)
Issued at 0900 UTC WED AUG 24 2016 000 WTNT22 KNHC 240834 TCMAT2 TROPICAL STORM GASTON FORECAST/ADVISORY NUMBER 7 NWS NATIONAL HURRICANE CENTER MIAMI FL AL072016 0900 UTC WED AUG 24 2016 THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT. TROPICAL STORM CENTER LOCATED NEAR 14.9N 38.6W AT 24/0900Z POSITION ACCURATE WITHIN 20 NM PRESENT MOVEMENT TOWARD THE WEST-NORTHWEST OR 290 DEGREES AT 15 KT ESTIMATED MINIMUM CENTRAL PRESSURE 999 MB MAX SUSTAINED WINDS 60 KT WITH GUSTS TO 75 KT. 50 KT....... 30NE 20SE 0SW 20NW. 34 KT....... 60NE 40SE 30SW 60NW. 12 FT SEAS..120NE 90SE 60SW 90NW. WINDS AND SEAS VARY GREATLY IN EACH QUADRANT. RADII IN NAUTICAL MILES ARE THE LARGEST RADII EXPECTED ANYWHERE IN THAT QUADRANT. REPEAT...CENTER LOCATED NEAR 14.9N 38.6W AT 24/0900Z AT 24/0600Z CENTER WAS LOCATED NEAR 14.6N 38.0W FORECAST VALID 24/1800Z 16.2N 40.6W MAX WIND 65 KT...GUSTS 80 KT. 64 KT... 20NE 0SE 0SW 0NW. 50 KT... 40NE 30SE 20SW 30NW. 34 KT... 80NE 60SE 40SW 70NW. FORECAST VALID 25/0600Z 18.2N 42.9W MAX WIND 70 KT...GUSTS 85 KT. 64 KT... 25NE 15SE 10SW 20NW. 50 KT... 50NE 40SE 20SW 30NW. 34 KT...110NE 90SE 60SW 90NW. FORECAST VALID 25/1800Z 20.4N 45.1W MAX WIND 70 KT...GUSTS 85 KT. 64 KT... 30NE 20SE 15SW 25NW. 50 KT... 60NE 40SE 30SW 40NW. 34 KT...130NE 110SE 70SW 100NW. FORECAST VALID 26/0600Z 22.9N 47.2W MAX WIND 70 KT...GUSTS 85 KT. 50 KT... 60NE 40SE 30SW 40NW. 34 KT...140NE 120SE 70SW 110NW. FORECAST VALID 27/0600Z 26.9N 52.3W MAX WIND 70 KT...GUSTS 85 KT. 50 KT... 60NE 40SE 30SW 40NW. 34 KT...140NE 110SE 80SW 110NW. EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 150 NM ON DAY 4 AND 200 NM ON DAY 5...AND FOR INTENSITY NEAR 15 KT EACH DAY OUTLOOK VALID 28/0600Z 29.5N 55.5W MAX WIND 80 KT...GUSTS 100 KT. OUTLOOK VALID 29/0600Z 31.5N 55.5W MAX WIND 85 KT...GUSTS 105 KT. REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 14.9N 38.6W NEXT ADVISORY AT 24/1500Z $$ FORECASTER BERG
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Tropical Storm GASTON Graphics
2016-08-24 05:09:52| National Hurricane Center (Atlantic)
5-Day Uncertainty Track last updated Wed, 24 Aug 2016 02:35:39 GMT Wind Speed Probabilities last updated Wed, 24 Aug 2016 03:06:37 GMT
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Tropical Storm GASTON Forecast Discussion Number 6
2016-08-24 04:34:57| National Hurricane Center (Atlantic)
Issued at 1100 PM AST TUE AUG 23 2016 000 WTNT42 KNHC 240234 TCDAT2 TROPICAL STORM GASTON DISCUSSION NUMBER 6 NWS NATIONAL HURRICANE CENTER MIAMI FL AL072016 1100 PM AST TUE AUG 23 2016 Gaston's cloud pattern has a figure-nine appearance, with an apparent dry slot over the southwest quadrant, and lacks a well-defined CDO at this time. The intensity is held at 55 kt in agreement with subjective and objective Dvorak estimates. The system has fairly well-defined upper-level outflow and is expected to remain in a low-shear environment for the next day or so. Therefore, the cyclone is likely to intensify into a hurricane in 12 to 24 hours. In about 36 hours, however, Gaston should encounter increasing southwesterly shear associated with an upper-tropospheric trough near 50-55W. This should at least temporarily halt the intensification process, and probably cause a little weakening. The global models indicate that Gaston will pass by the trough in 72 hours, and reintensification should commence around that time. The official intensity forecast is near the high end of the guidance models through 72 hours, and close to the model consensus thereafter. The motion continues toward the west-northwest, or 290/15 kt. Gaston should gradually turn toward the northwest in response to a break in the subtropical ridge near 60W. The official track forecast, which is very similar to the previous one, follows the latest dynamical model consensus, TVCN. FORECAST POSITIONS AND MAX WINDS INIT 24/0300Z 14.7N 37.1W 55 KT 65 MPH 12H 24/1200Z 15.8N 39.2W 65 KT 75 MPH 24H 25/0000Z 17.5N 41.7W 70 KT 80 MPH 36H 25/1200Z 19.5N 44.1W 75 KT 85 MPH 48H 26/0000Z 22.0N 46.2W 75 KT 85 MPH 72H 27/0000Z 26.5N 51.0W 70 KT 80 MPH 96H 28/0000Z 29.5N 54.5W 75 KT 85 MPH 120H 29/0000Z 31.5N 55.0W 85 KT 100 MPH $$ Forecaster Pasch
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